package com.sky.mapper;
import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;
@Mapper
public interface ShoppingCartMapper {
    /*
    * 动态条件查询
    * */
    List<ShoppingCart> list(ShoppingCart shoppingCart);
    /*
    * 根据id修改商品数量
    * */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart shoppingCart);
    
    /*
    * 插入购物车的数据
    * */
    @Insert("insert into shopping_cart (name, user_id, dish_id, setmeal_id, dish_flavor, number, amount, image, create_time) " +
            " values (#{name},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{image},#{createTime})")
    void insert(ShoppingCart shoppingCart);
/*
* 根据用户id删除购物车数据
* */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void deleteByUserId(Long userId);
    
}
